#include <iostream>
#include <cmath>
using namespace std;
//数制转换测试
int b = 0777;
int c = 0b101111001;
int main()
{
    printf("%x\n",b);//16进制
    printf("%o\n",b);//8进制
    printf("%d\n",b);//10进制
    printf("%b\n",b);//10进制


    printf("%x\n",c);//16进制
    printf("%o\n",c);//8进制
    printf("%d\n",c);//10进制
    
    cout << "Hello Vscode" << endl;
    return 0;
}